So I'm a little late to the party on this series, but I just finished up Volume 2 and thought it was a good read. Some tales better than others, which is to be expected in a collection.
I really the art by Juanfran Moyano and Tim Seeley (not that Javier Aranda and Eric J's contributions were bad, I just enjoyed the first two a little more).
A good collection for fans of D&D and fantasy comics in general. The stories in this collection are stand-alone enough that the reader does not have to know much about the over worlds of D&D to enjoy the tale.